No.2100
So, is Capaldi playing like an amnesiac Doctor or something? That's been worrying me since his introduction asking how to fly the Tardis.
I haven't watched Time Heist yet. All the shots and clips I've seen suggest he doesn't know who he is and he seems confused about things. That's… not a plotline I'd want to follow.
No.2101
No, when he regenerates he sometimes temporally loses his memory. That and the fact that he was on that planet several hundred years without flying the tardis.
As for time heist, everyone's memory is wiped at the beginning. That is a point of that story.